SO3

SULFITE ION

Created:	1999-07-08
Last modified:	2024-09-27

Find Related PDB Entry
123 entries where SO3 is found as a standalone ligand4 entries where SO3 is covalently linked to polymer or other heterogen groups

Find related ligands:

Similar Ligands (Stereospecific) Similar Ligands (including Stereoisomers) Similar Ligands (Quick Screen) Similar Ligands (Substructure Stereospecific) Similar Ligands (Substructure including Stereoisomers)

Chemical Details
Formal Charge	-2
Atom Count	4
Chiral Atom Count	0
Bond Count	3
Aromatic Bond Count	0

2D diagram of SO3

Toggle Hydrogen Toggle Labels

Chemical Component Summary
Name	SULFITE ION
Systematic Name (OpenEye OEToolkits)	sulfite
Formula	O₃ S
Molecular Weight	80.063
Type	NON-POLYMER

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	ACDLabs	10.04	[O-]S([O-])=O
SMILES	CACTVS	3.341	[O-][S]([O-])=O
SMILES	OpenEye OEToolkits	1.5.0	[O-]S(=O)[O-]
Canonical SMILES	CACTVS	3.341	[O-][S]([O-])=O
Canonical SMILES	OpenEye OEToolkits	1.5.0	[O-]S(=O)[O-]
InChI	InChI	1.03	InChI=1S/H2O3S/c1-4(2)3/h(H2,1,2,3)/p-2
InChIKey	InChI	1.03	LSNNMFCWUKXFEE-UHFFFAOYSA-L

Related Resource References

Resource Name	Reference
PubChem	1099
ChEBI	CHEBI:33543, CHEBI:17359
COD	9009622

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.